0ccd84220b92b5f92735d9f6cb5dd1cc93e49c8f6fa99bb7524df6cdceaafb74

Analysis

max time kernel
148s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
05-10-2024 09:34

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General

Target

2024-10-05_777821b4541093fff14e3963222010dd_cryptolocker.exe
Size

38KB
MD5

777821b4541093fff14e3963222010dd
SHA1

a9dd6ecbd789476a61066228a3d51317fdc08178
SHA256

0ccd84220b92b5f92735d9f6cb5dd1cc93e49c8f6fa99bb7524df6cdceaafb74
SHA512

4f6b5c3be0a81d6a38fccfd22b0c1b30d7b08cf11420bac4b3024240b907a78284c595d796492e3ea00c58fc115e4c02c917ab252c7e261e72036b2dc067f5ad
SSDEEP

768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkIT6:qDdFJy3QMOtEvwDpjjWMl7T6

Score

7^/10

discovery upx

Malware Config

Signatures

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Control Panel\International\Geo\Nation	2024-10-05_777821b4541093fff14e3963222010dd_cryptolocker.exe

Executes dropped EXE 1 IoCs

pid	Process
4372	asih.exe

UPX packed file 4 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/212-0-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/files/0x000800000002346d-13.dat	upx
behavioral2/memory/212-18-0x0000000000500000-0x0000000000510000-memory.dmp	upx
behavioral2/memory/4372-27-0x0000000000500000-0x0000000000510000-memory.dmp	upx

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-10-05_777821b4541093fff14e3963222010dd_cryptolocker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	asih.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 212 wrote to memory of 4372	212	2024-10-05_777821b4541093fff14e3963222010dd_cryptolocker.exe	84
PID 212 wrote to memory of 4372	212	2024-10-05_777821b4541093fff14e3963222010dd_cryptolocker.exe	84
PID 212 wrote to memory of 4372	212	2024-10-05_777821b4541093fff14e3963222010dd_cryptolocker.exe	84

C:\Users\Admin\AppData\Local\Temp\2024-10-05_777821b4541093fff14e3963222010dd_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-10-05_777821b4541093fff14e3963222010dd_cryptolocker.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:212
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:4372

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
38KB

MD5
d704f0b0e716029eb61744a4e4c80ff6

SHA1
be40e9d4f5a2d1a4aa38d932acc9ed8e61b94fdb

SHA256
3e4c40601806c5d35fdce7d0cdf6995d157a8ad8dee3f0b957bd6b979302ef9a

SHA512
d6dafeb9bb4df3a764a099b09c1d3aea2575c3ac67afa84f5156b88632671bb29eb55c2e8f9162a1a5be85a5619261924e035bbd04b68ba660c1ce2c34d21103

Download Submit
memory/212-0-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/212-1-0x0000000000690000-0x0000000000696000-memory.dmp

Filesize
24KB

Download
memory/212-2-0x0000000000690000-0x0000000000696000-memory.dmp

Filesize
24KB

Download
memory/212-3-0x00000000006B0000-0x00000000006B6000-memory.dmp

Filesize
24KB

Download
memory/212-18-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download
memory/4372-20-0x00000000020F0000-0x00000000020F6000-memory.dmp

Filesize
24KB

Download
memory/4372-26-0x00000000006A0000-0x00000000006A6000-memory.dmp

Filesize
24KB

Download
memory/4372-27-0x0000000000500000-0x0000000000510000-memory.dmp

Filesize
64KB

Download